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Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

A speculum used to hold the vagina open in order to visualize the cervix. A speculum used to hold the vagina open in order to visualize the cervix.
Daniel Burnham’s Flatiron Building (1902) was one of the first to use steel girders to hold up the b Daniel Burnham’s Flatiron Building (1902) was one of the first to use steel girders to hold up the b
A typical peak-and-hold fuel-injector waveform. Most fuel injectors that measure less than 6 ohms ... A typical peak-and-hold fuel-injector waveform. Most fuel injectors that measure less than 6 ohms ...
Patients with celiac disease must maintain a gluten-free diet. Many gluten-free items are widely ... Patients with celiac disease must maintain a gluten-free diet. Many gluten-free items are widely ...
Draping for a woman’s chest. A. Place a towel over the sheet on the upper chest. B. Hold the towel ... Draping for a woman’s chest. A. Place a towel over the sheet on the upper chest. B. Hold the towel ...
Control you knife with one hand and hold the item being cut with the other (2 of 3) Control you knife with one hand and hold the item being cut with the other (2 of 3)
Video: Transcription - Introns and exons

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